Alpinestars Nucleon KR-Celli Back Protector

The extremely lightweight, CE-certified KR-Celli Protector insert features an articulated back shell plate for flexibility and riding fit, plus an advanced micro-structure cell design for efficient impact energy absorption and high levels of airflow. This protector has a hard shell and is intended for use in race/sport suits and jackets. Alpinestars has other models for Adventure and Touring, contact us if you need assistance. Triple segmented back shell plate Constructed from a high performance polymeric material blend Optimized for flexibility and excellent weight saving properties Unique cell micro-structure designed for advanced energy absorption, adaptivity, maximum breathability and air flow. Back Protection – EN 1621-2:2014 Level 1 Three waist-to-shoulder dimensions to cover all body sizes. Ergonomic protection plate contours to the natural curve of the back ensuring optimum fit while riding.